Ok, the first thing is to get your rims 16 will not fit on the front (calipers are too big some 17's will fit )
the front can have offset of 30 to 40 your stock lug bolts will work fine. the rear get 16 or 17 and to check the offset (20 to 25) put a lug bolt in the rim ,,,you need 3/4" sticking through,, add spacer until you get the 3/4' sticking through.

lug bolts, stock are round flange
aftermarket, ore acorn or taper flange
mercedes wheels (rims) are round so you can use stock lugs, your stock lugs. yet some mercedes have holes for 1/2" dia. lugs you can't use these wheels.
aftermarket wheels (rims) have acorn/taper and you have to have the correct lugs for that wheel (rim)
hope this helps. jim